Prudent Engineering Practice for Cryptographic Protocols
IEEE Transactions on Software Engineering
Fair exchange with a semi-trusted third party (extended abstract)
Proceedings of the 4th ACM conference on Computer and communications security
A Multi-party Optimistic Non-repudiation Protocol
ICISC '00 Proceedings of the Third International Conference on Information Security and Cryptology
A Multi-Party Non-Repudiation Protocol
Proceedings of the IFIP TC11 Fifteenth Annual Working Conference on Information Security for Global Information Infrastructures
Optimistic Fair Exchange with Transparent Signature Recovery
FC '01 Proceedings of the 5th International Conference on Financial Cryptography
Secure Group Barter: Multi-party Fair Exchange with Semi-Trusted Neutral Parties
FC '98 Proceedings of the Second International Conference on Financial Cryptography
Multi-Party Fair Exchange with an Off-Line Trusted Neutral Party
DEXA '99 Proceedings of the 10th International Workshop on Database & Expert Systems Applications
An Efficient Non-repudiation Protocol
CSFW '97 Proceedings of the 10th IEEE workshop on Computer Security Foundations
Exclusion-Freeness in Multi-party Exchange Protocols
ISC '02 Proceedings of the 5th International Conference on Information Security
Exclusions and related trust relationships in multi-party fair exchange protocols
Electronic Commerce Research and Applications
Multiparty nonrepudiation: A survey
ACM Computing Surveys (CSUR)
Attacking an asynchronous multi-party contract signing protocol
INDOCRYPT'05 Proceedings of the 6th international conference on Cryptology in India
A Practical Approach of Fairness in E-Procurement
International Journal of Information Security and Privacy
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In 1999, Bao et al. proposed [6] a multi-party fair exchange protocol of electronic items with an offline trusted third party. In this protocol, a coalition including the initiator of the exchange can succeed in excluding a group of parties without the consent of the remaining entities. We show that every participant must trust the initiator of the protocol for not becoming a passive conspirator. We propose a new protocol in which the participants only need to trust the trusted third party. Moreover, under certain circumstances, if there are participants excluded from the exchange, they can prove that a problem occurred to an external adjudicator.